separate faeces from urine; produce energy and reduce wastewater usage
http://www.holon.se/folke/kurs/Distans/Ekofys/Recirk/Eng/mifsla_en.shtml
http://www.wost-man-ecology.se/clearvac_duo.
3 random photographs from my photos at flickr
View my WishList at amzn p com